Finding the Fourth Proportional to 660,574,989.84, 990,207,985.46 and 310,193,841.09
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Solution
The fourth proportional to 660,574,989.84, 990,207,985.46 and 310,193,841.09 is: 464,983,420.82
Step by Step Solution
- Step 1: Write the proportion equation
660,574,989.84 : 990,207,985.46 = 310,193,841.09 : x - Step 2: Convert to fraction form
660,574,989.84/990,207,985.46 = 310,193,841.09/x - Step 3: Cross multiply
660,574,989.84x = 990,207,985.46 × 310,193,841.09 - Step 4: Simplify right side
660,574,989.84x = 307,156,418,486,277,312 - Step 5: Solve for x
x = 307,156,418,486,277,312/660,574,989.84 - Step 6: Final answer
x = 464,983,420.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.